31991463

素因数分解:

$3^3\times 7^2\times {\mathrm{24181}}^1$

素因数の和:24204

約数の個数: 24

約数和(自身を含む): 55134960

約数和(自身を除く): 23143497

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 24181, 72543, 169267, 217629, 507801, 652887, 1184869, 1523403, 3554607, 4570209, 10663821, 31991463]

約数ペア:

[(1, 31991463), (3, 10663821), (7, 4570209), (9, 3554607), (21, 1523403), (27, 1184869), (49, 652887), (63, 507801), (147, 217629), (189, 169267), (441, 72543), (1323, 24181)]